How to check and refill power steering fluid on a 1970 Plymouth Hemi 'Cuda?

Content verified by Michael G.
July 18, 2025
Discover how to check and top up the power steering fluid in your classic 1970 Plymouth Hemi 'Cuda with our easy-to-follow guide. Keep your car running smoothly and extend its lifespan.

Owning a classic 1970 Plymouth Hemi 'Cuda is an experience that involves regular maintenance to keep it running smoothly. One of the key components to monitor is the power steering fluid, which is vital for ease of maneuvering and the longevity of the steering system. Indications that the power steering fluid may need attention include unusual noises when turning the wheel, increased steering effort, or a noticeable leak under the vehicle. If these symptoms are present, it’s time to check and refill the power steering fluid. Here is how to solve this issue.

Step 1: Locate the Power Steering Fluid Reservoir

First, you need to find the power steering fluid reservoir. In the 1970 Plymouth Hemi 'Cuda, this is typically located on the driver's side of the engine bay, near the firewall. It is a small, cylindrical container with a metal cap, often labeled with "Power Steering Fluid" or similar markings.

Step 2: Inspect the Fluid Level

Before opening the reservoir, make sure your engine is cool to avoid any potential burns. Twist off the metal cap carefully. You will notice a dipstick attached to the underside of the cap. Wipe the dipstick clean with a rag, reinsert it fully, and then pull it out again to check the fluid level. The dipstick will have marks indicating optimal fluid levels.

Step 3: Assess Fluid Quality

Examine the fluid on the dipstick. Power steering fluid should be a clear, reddish color. If it appears dark brown or black, it's contaminated and needs to be replaced rather than just refilled. Also, ensure there's no metallic debris in the fluid, which can indicate internal wear in the system.

Step 4: Add Power Steering Fluid

If the fluid level is low and the fluid quality is acceptable, proceed to refill. Use a funnel to add the power steering fluid to avoid spills. Pour in small amounts and continuously check the dipstick to ensure you do not overfill. The appropriate type of power steering fluid can be found in your vehicle's owner's manual or by consulting a classic car specialist.

Step 5: Secure the Reservoir Cap

After achieving the desired fluid level, screw the cap back onto the reservoir securely. Make sure it’s fastened tightly to prevent any leaks.

Step 6: Test the System

Start your car and turn the steering wheel from lock to lock a few times. This helps to circulate the fluid through the system and expel any air that might be trapped. Check the fluid level once more and top off if necessary.

Step 7: Monitor for Leaks

Keep an eye on the ground where you park your car for any signs of power steering fluid leakage over the next few days. If you notice any significant leaks, it might indicate a more serious issue that requires professional attention.

By following these steps, you can ensure your 1970 Plymouth Hemi 'Cuda’s power steering system remains in top shape, giving you a smoother, more enjoyable driving experience. Regular checks and maintenance are key to preserving the performance and longevity of this classic vehicle.

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